Vortex 671ZB-45 Aluminum Rear Sprocket 420 Pitch 45 Tooth Blue

The Vortex 671ZB-45 is a precision-engineered aluminum rear sprocket designed for serious riders who demand performance without compromise. This 45-tooth sprocket features 420 chain pitch and comes in an eye-catching blue anodized finish with machined silver highlights.

Premium Construction and Materials:

• CNC machined from aerospace-grade 7075-T6 aluminum for exceptional strength-to-weight ratio
• Blue anodized finish applied before machining creates the signature two-tone look
• Anodized coating prevents corrosion and oxidation while adding style
• Weighs approximately half of a comparable steel sprocket
• 100% manufactured in the USA to the tightest tolerances in the industry

Performance Features:

• Reduced rotating mass improves acceleration and deceleration
• Vortex patented tooth design increases sprocket longevity and reduces chain wear
• Lightening holes strategically placed to minimize weight without sacrificing strength
• Perfectly concentric design ensures smooth power delivery and extended component life
• Mud grooves between teeth help keep debris away from critical contact surfaces

Race-Proven Quality:

Trusted by professional race teams worldwide in motocross, supercross, road racing, and flat track competition. Vortex sprockets are manufactured to such precise tolerances that many riders report lifespans rivaling steel sprockets when properly maintained. For optimal performance and longevity, clean and tension your chain every 300-400 miles when running aluminum sprockets.

Specifications:

• Chain Pitch: 420
• Tooth Count: 45T
• Material: 7075-T6 Aluminum
• Finish: Blue Anodized with Machined Accents
• Pattern: 671 (check fitment for your specific application)